Data Acquisition (DAQ) and Control from Microstar Laboratories

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Q10089 HD78 connector for I/O

Tags: Help, analog I/O

Applies to: MSXB060, MSXB061, accessory boards with HD78 connector

I have a board with a HD78 connector for I/O. How should I connect to it?

Female (receptable, socket) HD78 connectors are used primarily for analog inputs on our input expansion boards. They are high-density D connectors with 78 pins in four rows. They mate with male (plug) HD78 connectors on connecting cables.

Related Products and Pinout

  1. MSXB060/MSXB061 - Analog Input Expansion Boards

    The female HD78 connector is used on the following models of the MSXB060 and MSXB061 for differential inputs:

    • MSXB060-01-E2R - 32 differential inputs
    • MSXB061-01-E2S - 64 differential inputs

    Figures 1a and 1b show the pinout of the female HD78 connector on the MSXB060, with the corresponding connections on the male connector on the cable. The MSXB061 has two female HD78 connectors - the one on the left (looking at board) is the same as that for the MSXB060 and the connector on the right (connector further from printed-circuit board) has input pins for channels D32 through D63 in the same pin order as D0 to D31. The latter connector does not include connections to the DACs (pins 4, 23, 43, 62).

Mating Hardware

The HD78 female connector is part number 748483-5 frmo AMP / Tyco. It mates with the following parts for a round cable:

  • D-connector - 748368-1 from AMP
  • Shell - 8655MH5011 from FCI
  • Crimp pins - 748333-4 for 22-28 AWG wires from AMP

The following products from Microstar mate with the female HD78 connector:

  • MSCBL117-01K - cable kit for shielded round cable consisting of a male connector, shell, and pins for all contacts


MSXB060 Manual

Model number suffix

Note: Information on this page was collected from multiple sources. If you have any concerns about the accuracy of the information provided here, check the hardware manuals for your specific products. Those manuals are the authoritative sources.